Biomass gasification furnace

Abstract

The utility model relates to a biomass gasification furnace which comprises a biomass gasification furnace body, a cleaning assembly is installed at the bottom end of the biomass gasification furnace body in a penetrating mode and comprises a mounting frame, a motor is installed in the middle of the side edge of the mounting frame, and the output end of the motor is fixedly connected with a first bevel gear; a driving rod is rotatably connected to the lower portion of the mounting frame, a second bevel gear is fixedly connected to the outer side of the driving rod, a fire grate is mounted at the top end of the driving rod, and a plurality of first ash discharging holes are formed in the upper end and the lower end of the fire grate in a penetrating mode; the third bevel gear and the second bevel gear are both in meshed connection with the first bevel gear, the top end of the driving pipe is fixedly connected with a rotating disc, the upper end and the lower end of the rotating disc are provided with a plurality of second ash discharging holes, and the effect of promoting the ash discharging efficiency is achieved, and the situation that the continuity of gasification reaction and the gas quality are affected due to airflow channel blockage is avoided.

Description

Technical Field

[0001] This application relates to the technical field of biomass gasifiers, and in particular to a biomass gasifier. Background Technology

[0002] A biomass gasifier is a device that converts biomass raw materials (such as straw, wood chips, etc.) into combustible gases through thermochemical conversion. Its core challenge lies in the accumulation of ash and slag during the gasification process. Traditional gasifiers mostly use fixed grates, and ash and slag easily adhere to the surface of the grate, resulting in low ash removal efficiency and blockage of airflow channels, which in turn affects the continuity of the gasification reaction and the quality of the gas.

[0003] Therefore, those skilled in the art have provided a biomass gasification furnace to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the problems mentioned in the background art, this application provides a biomass gasification furnace.

[0005] The biomass gasification furnace provided in this application adopts the following technical solution:

[0006] A biomass gasifier includes a biomass gasifier body. A cleaning assembly is installed through the bottom end of the biomass gasifier body. The cleaning assembly includes a mounting frame. A motor is centrally mounted on the side of the mounting frame. A first bevel gear is fixedly connected to the output end of the motor. A drive rod is rotatably connected to the lower part of the mounting frame. A second bevel gear is fixedly connected to the outer side of the drive rod. A grate is mounted at the top of the drive rod. Several first-row ash holes are opened through the upper and lower ends of the grate. A drive pipe is rotatably connected to the upper part of the mounting frame. A third bevel gear is fixedly connected to the outer side of the drive pipe. Both the third and second bevel gears mesh with the first bevel gear. A turntable is fixedly connected to the top of the drive pipe. Several second-row ash holes are opened through the upper and lower ends of the turntable. The drive pipe is sleeved on the outer side of the drive rod.

[0007] Preferably, an installation groove is provided in the center of the inner side of the grate, a movable block is slidably connected to the inner side of the installation groove, a short rod is fixedly connected to the bottom end of the movable block, a spring is provided on the outer side of the short rod and at the position between the bottom end of the movable block and the installation groove, and the bottom end of the short rod is fixedly connected to the drive rod.

[0008] Preferably, the movable block has two symmetrically arranged protrusions on its side, which are located within the limiting groove on the side of the mounting groove.

[0009] Preferably, a first inclined block is fixedly connected to the bottom end of the grate, and a second inclined block is fixedly connected directly below the first inclined block and located on the turntable.

[0010] Preferably, the grate and the turntable have the same diameter, and the first row of ash holes and the second row of ash holes are located at the same position.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. The grate, through the combined action of high-frequency vertical vibration and continuous rotational motion, utilizes inertial force and mechanical impact to disrupt the ash and slag adhesion structure. Simultaneously, the periodic alignment of the dynamic ash discharge holes forms a self-cleaning channel, effectively preventing ash and slag accumulation and blockage, ensuring continuous ash discharge. The limiting cooperation between the moving block and the mounting groove constrains the grate to vibrate only in the vertical direction, preventing deviation that could lead to ash discharge failure. This promotes ash discharge efficiency and prevents blockage of the airflow channel from affecting the continuity of the gasification reaction and the quality of the fuel gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 This is a cross-sectional view of the grate of this application;

[0015] Figure 3 This is a schematic diagram of the turntable and grate structure of this application.

[0016] Explanation of reference numerals in the attached drawings: 1. Biomass gasifier body; 2. Cleaning assembly; 201. Mounting bracket; 202. Motor; 203. First bevel gear; 204. Second bevel gear; 205. Drive rod; 206. Short rod; 207. Moving block; 208. Grate; 209. First row of ash holes; 210. Mounting groove; 211. Spring; 212. Third bevel gear; 213. Drive tube; 214. Turntable; 215. Second row of ash holes; 216. First inclined block; 217. Second inclined block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1

[0019] like Figure 1As shown, this application discloses a biomass gasification furnace, including a biomass gasification furnace body 1. A cleaning component 2 is installed through the bottom end of the biomass gasification furnace body 1. The cleaning component 2 includes a mounting frame 201. A motor 202 is centrally mounted on the side of the mounting frame 201. A first bevel gear 203 is installed at the output end of the motor 202. A drive rod 205 is installed at the lower part of the mounting frame 201. A second bevel gear 204 is installed on the outer side of the drive rod 205. A grate 20 is installed at the top of the drive rod 205. 8. Several first-row ash holes 209 are opened at both ends of the grate 208. A drive tube 213 is installed on the upper part of the mounting bracket 201. A third bevel gear 212 is installed on the outside of the drive tube 213. The third bevel gear 212 and the second bevel gear 204 are both meshed with the first bevel gear 203. A turntable 214 is installed at the top of the drive tube 213. Several second-row ash holes 215 are opened at both ends of the turntable 214. The drive tube 213 is sleeved on the outside of the drive rod 205.

[0020] Motor 202 drives the first bevel gear 203 to rotate, the first bevel gear 203 drives the third bevel gear 212 and the second bevel gear 204 to rotate, the third bevel gear 212 and the second bevel gear 204 rotate in opposite directions, the second bevel gear 204 drives the grate 208 to rotate through the drive rod 205, the third bevel gear 212 drives the drive tube 213 to drive the turntable 214 to rotate, the grate 208 and the turntable 214 contact each other through the first inclined block 216 and the second inclined block 217, driving the grate 208 to move back and forth in the vertical direction, promoting the cleaning of ash and slag.

[0021] like Figure 3 As shown, the grate 208 and the turntable 214 have the same diameter, and the first row of ash holes 209 and the second row of ash holes 215 are located in the same position.

[0022] like Figure 2 As shown, an installation groove 210 is provided in the center of the inner side of the grate 208. A movable block 207 is installed in the inner side of the installation groove 210. A short rod 206 is installed in the center of the bottom end of the movable block 207. A spring 211 is provided on the outer side of the short rod 206 and at the position between the bottom end of the movable block 207 and the installation groove 210. The bottom end of the short rod 206 is fixedly connected to the drive rod 205. When the first inclined block 216 contacts the second inclined block 217, the grate 208 rises. When the first inclined block 216 moves away from the second inclined block 217, the spring 211 drives the grate 208 to return to its original position.

[0023] like Figure 2 As shown, the side of the movable block 207 is provided with two symmetrically arranged protrusions, which are located in the limiting groove on the side of the mounting groove 210. By setting the protrusions on the movable block 207, the grate 208 can be limited.

[0024] like Figure 3 As shown, a first inclined block 216 is installed at the bottom of the grate 208, and a second inclined block 217 is fixedly connected directly below the first inclined block 216 and on the turntable 214. When the first inclined block 216 contacts the second inclined block 217, it pushes the grate 208 to rise, promoting the cleaning of accumulated ash and slag.

[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] The implementation principle of a biomass gasification furnace according to an embodiment of this application is as follows:

[0028] In operation, after the motor 202 starts, it drives the first bevel gear 203 to rotate. Through meshing, the first bevel gear 203 synchronously drives the second bevel gear 204 and the third bevel gear 212 to rotate in opposite directions. The second bevel gear 204 drives the grate 208 to rotate via the drive rod 205, while the third bevel gear 212 drives the turntable 214 to rotate in the opposite direction via the drive tube 213. A first inclined block 216 is fixed to the bottom of the grate 208, and a second inclined block 217 is fixed to the top of the turntable 214. When the two rotate in opposite directions, the inclined blocks periodically collide. When the first inclined block 216 contacts the second inclined block 217, it pushes the grate 208 against the spring. The resistance 211 moves upward and, after disengaging from contact, the spring 211 rebounds, causing the grate 208 to quickly return to its original position. This process generates high-frequency vertical vibration of the grate 208 while maintaining its own rotational motion. The vibration causes the ash and slag on the surface of the grate 208 to separate from the grate due to inertia and fall through the first ash discharge hole 209 on the grate. The second ash discharge hole 215 on the turntable 214 periodically aligns with the ash discharge hole of the grate 208, forming a dynamic ash discharge channel to further prevent blockage. The limiting protrusion of the moving block 207 cooperates with the mounting groove 210 to ensure that the grate 208 vibrates only in the vertical direction, preventing displacement that could lead to ash discharge failure.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A biomass gasifier comprising a biomass gasifier body (1), a cleaning assembly (2) is installed through the bottom end of the biomass gasifier body (1), characterized in that, The cleaning assembly (2) comprises a mounting frame (201), a motor (202) is centrally mounted on the side of the mounting frame (201), the output end of the motor (202) is fixedly connected with a first bevel gear (203), the lower part of the mounting frame (201) is rotatably connected with a drive rod (205), the outer side of the drive rod (205) is fixedly connected with a second bevel gear (204), the top end of the drive rod (205) is provided with a grate (208), a plurality of first ash holes (209) are formed through the upper and lower ends of the grate (208), the upper part of the mounting frame (201) is rotatably connected with a drive pipe (213), the outer side of the drive pipe (213) is fixedly connected with a third bevel gear (212), the third bevel gear (212) and the second bevel gear (204) are both meshingly connected with the first bevel gear (203), the top end of the drive pipe (213) is fixedly connected with a rotating disc (214), a plurality of second ash holes (215) are formed through the upper and lower ends of the rotating disc (214), and the drive pipe (213) is sleeved on the outer side of the drive rod (205).

2. The biomass gasifier according to claim 1, wherein: The inner side of the grate (208) is centrally provided with a mounting groove (210), the inner side of the mounting groove (210) is slidably connected with a moving block (207), the bottom end of the moving block (207) is fixedly connected with a short rod (206), the outer side of the short rod (206) and located between the bottom end of the moving block (207) and the mounting groove (210) is provided with a spring (211), and the bottom end of the short rod (206) is fixedly connected with the drive rod (205).

3. A biomass gasifier according to claim 2, wherein: The side of the moving block (207) is provided with two symmetrically arranged protrusions arranged in the limiting grooves on the side of the mounting groove (210).

4. The biomass gasifier according to claim 1, wherein: The bottom end of the grate (208) is fixedly connected with a first inclined block (216), and the second inclined block (217) is fixedly connected above the first inclined block (216) and on the rotating disc (214).

5. The biomass gasifier according to claim 1, wherein: The grate (208) and the rotating disc (214) have the same diameter, and the first ash holes (209) and the second ash holes (215) have the same partial positions.

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